the mayor stood up to introduce me. he said, i spent the afternoon talking to my treasurer figuring out how to pull our money out of fossil fuel. they made their official announcement, it will be a hideously hard fight but that fight is engaged. at least we're saying out loud what's true, that these companies are now rogue companies, and until they stop exploring for new hydrocarbons, and until they stop lobbying in washington we've really got to regard them as the source of this trouble. >> and always the bottom approach to solve problems. is it the companies who are at fault? or all of us. i'm sure you've flown around the country in a plane that uses fossil fuel. >> you answered the question yourself right there. even when we don't intend to. most of us don't care at all whether our power comes from the sun or wind or fossil fuel. in fact, we prefer that it comes from some place clean. we're not the ones making those decisions. we're not the ones spending literally billions of dollars a year in lobbying and making cam